blinds trimmer

i needed to trim down some blinds and i cant cut straight with scissors so this is what i came up with.

it works quite well, best to do it on the ground like in the picture.
i did it by kneeling on the bit i have just cut and holding the part out in front and the cutter just slides along the edge nice and smooth.

there are 6 different slots you can put the blade in to cut different amounts of the edge.
5mm, 10mm, 15mm, 20mm, 25mm and 30mm

best to use a new sharp blade. the top of the blade does hang out at the top since this was just a quick thing i threw together, its not sharp but please be careful with it.